Matching (9) Match items in column A to column B

Column a Column b
1.
A.
Asthenosphere
2.
B.
Inner Core
3.
C.
Lithosphere
4.
D.
Convection
5.
E.
Crust
6.
F.
Mantle
7.
G.
Dense
8.
H.
Outer Core
9.
I.
Core